A PACKAGE WRAPPED CAREFULLY BEFORE IT IS MAILED. , THE POST OFFICE...

31. - TRAC NGHIEM TIENG ANH 12 PROGRESS TEST 3
TRAC NGHIEM TIENG ANH 12 PROGRESS TEST 3

31. A package

wrapped carefully before it is mailed.

, the post office won’t send it.

A.should be/ However

B.will be/ Nevertheless

C.must be/ Otherwise

D.can be/ Unless